Shower screens



FIG. 1 is a perspective view of an embodiment of my design for a shower screen, shown in a partially open state;

FIG. 2 is a perspective view of my design for a shower screen in a closed state;

FIG. 3 is a front view of my design for a shower screen in an open state, the rear view being identical; and,

FIG. 4 is a top view of my design for a shower screen in an open state. 

The ornamental design for a shower screen, as shown and described. 